What record on a Prism to 6200 meterts?

kamyk · August 28th, 2006, 01:32 AM

Hi All

Just doing some research on Prism Topaz Rebreathers and found this comment in one of the manufactures adds.

For the technical diver, the unit adapts well to customization and
adaptation for specific mission logistics and needs. Many users have
incorporated stainless steel backplates and harnesses into the unit. The
small size and long duration allow for the unit be easily staged or carried
for long duration dives. In fact, the Topaz was recently used in a 20,000
plus feet / 6,200 meter cave penetration in Australia ??. Establishing a new
world record for maximum cave penetration from a single entry/exit.

Can any one tell me when this record took place and by whom?

MarkT · August 28th, 2006, 02:09 AM

forget earlier post, this seems to be what you want :

'Craig and his buddy Karl were involved in a major cavediving push in Cocklebiddy Cave on the prism rebreathers, back in July 2003. (A report of that trip can be found on the http://www.trimixdivers.com/Navigate.do under “Website Index” go to “Caves report” and see “9. Cocklebiddy 2003 / the push”) sorry, it’s a bit clunky…'

***techadmin*** · August 29th, 2006, 01:19 PM

The guys who did the dive are on www.rebreatherworld.com - which incidentally is probably the place to be talking about a Prism!

Terri · September 5th, 2006, 04:33 AM

About that record. Here from Chris Brown the record holder from earlier times with more info about Cocklebiddy:

I read with interest of the 'new world record' set in Cocklebiddy in 2003.
From my fading memory, the distance set by the 1983 push in Cocklebiddy
headed by Hugh Morrison was 6240 metres from the cave entrance of which 5290
metres was under water. I remember this quiie well as I was one of the
sherpas or back up divers, which is a polite way of saying slave labour on
the 1983 expedition. In 1995, I headed a 'push' into Cocklebiddy and only
managed another 20 metres which brings up a total cave length of 6260 metres
of which 5310 metres was under water. So since the 1983 and the 1995
expeditions, the cave has shrunk by 40 to 60 metres or has someone stolen
part of the cave! I do remember that the cave was still going, but I would
have to loose about 60 Kg of body weight to continue on any reasonable
distance. Reasonable distance in this case would be 2 or 3 metres. I suppose
I should have a friendly discussion with Craig and Karl and see where they
got to at the end of their dive, but in the big picture, does it really
matter, as long as everyone was having fun!

Well that it enough of the history lesson for today.

Regards,

Christopher Brown CDAA 708

August 28th, 2006, 01:32 AM	#1 (permalink)
kamyk(Offline) New Member Join Date: Apr 2006 Location: New Zealand Posts: 128	What record on a Prism to 6200 meterts? Hi All Just doing some research on Prism Topaz Rebreathers and found this comment in one of the manufactures adds. For the technical diver, the unit adapts well to customization and adaptation for specific mission logistics and needs. Many users have incorporated stainless steel backplates and harnesses into the unit. The small size and long duration allow for the unit be easily staged or carried for long duration dives. In fact, the Topaz was recently used in a 20,000 plus feet / 6,200 meter cave penetration in Australia ??. Establishing a new world record for maximum cave penetration from a single entry/exit. Can any one tell me when this record took place and by whom? __________________ www.cavedivers.com.au

August 28th, 2006, 02:09 AM	#2 (permalink)
MarkT(Offline) New Member Join Date: Jul 2006 Location: Aylesbury Posts: 233	forget earlier post, this seems to be what you want : 'Craig and his buddy Karl were involved in a major cavediving push in Cocklebiddy Cave on the prism rebreathers, back in July 2003. (A report of that trip can be found on the http://www.trimixdivers.com/Navigate.do under “Website Index” go to “Caves report” and see “9. Cocklebiddy 2003 / the push”) sorry, it’s a bit clunky…' Last edited by MarkT; August 28th, 2006 at 02:34 AM.

August 29th, 2006, 01:19 PM	#3 (permalink)
*techadmin*(Offline) Administrator Join Date: Nov 2005 Location: Data Center Posts: 214	The guys who did the dive are on www.rebreatherworld.com - which incidentally is probably the place to be talking about a Prism!

September 5th, 2006, 04:33 AM	#4 (permalink)
Terri(Offline) New Member Join Date: Feb 2006 Location: Melbourne, Australia Posts: 15	About that record. Here from Chris Brown the record holder from earlier times with more info about Cocklebiddy: I read with interest of the 'new world record' set in Cocklebiddy in 2003. From my fading memory, the distance set by the 1983 push in Cocklebiddy headed by Hugh Morrison was 6240 metres from the cave entrance of which 5290 metres was under water. I remember this quiie well as I was one of the sherpas or back up divers, which is a polite way of saying slave labour on the 1983 expedition. In 1995, I headed a 'push' into Cocklebiddy and only managed another 20 metres which brings up a total cave length of 6260 metres of which 5310 metres was under water. So since the 1983 and the 1995 expeditions, the cave has shrunk by 40 to 60 metres or has someone stolen part of the cave! I do remember that the cave was still going, but I would have to loose about 60 Kg of body weight to continue on any reasonable distance. Reasonable distance in this case would be 2 or 3 metres. I suppose I should have a friendly discussion with Craig and Karl and see where they got to at the end of their dive, but in the big picture, does it really matter, as long as everyone was having fun! Well that it enough of the history lesson for today. Regards, Christopher Brown CDAA 708